Analysis
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max time kernel
133s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
10-05-2024 15:52
Static task
static1
Behavioral task
behavioral1
Sample
59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe.exe
Resource
win10v2004-20240426-en
General
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Target
59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe.exe
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Size
372KB
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MD5
918c9a0562f31fbaf2147d55138bb32d
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SHA1
d6f34de772643203d3f964c83d8b3b2af4865de6
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SHA256
59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe
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SHA512
38c05cfd43c8fa6f67760572ff95acace95ab63fa5adaedc242db3b1ad9e9981228fad65c356237cacd0b785630a1fbf12b701d6d8221858ee38716623ca8e58
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SSDEEP
6144:2340bT53/l0SfFOzHlVTAThxgDxHZLdqUItnYNiL+oprkTmRAehzTtvY:2340N9FfFoHv2gDxyTAW+odkTmZtBY
Malware Config
Extracted
stealc
http://185.172.128.150
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url_path
/c698e1bc8a2f5e6d.php
Signatures
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Detect ZGRat V1 3 IoCs
resource yara_rule behavioral1/memory/376-97-0x000001F1C4240000-0x000001F1C7A74000-memory.dmp family_zgrat_v1 behavioral1/memory/376-98-0x000001F1E3110000-0x000001F1E321A000-memory.dmp family_zgrat_v1 behavioral1/memory/376-105-0x000001F1E2F70000-0x000001F1E2F94000-memory.dmp family_zgrat_v1 -
Downloads MZ/PE file
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation 59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe.exe Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation upk.1.exe -
Executes dropped EXE 2 IoCs
pid Process 4580 upk.0.exe 4384 upk.1.exe -
Loads dropped DLL 2 IoCs
pid Process 4580 upk.0.exe 4580 upk.0.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
pid pid_target Process procid_target 2676 920 WerFault.exe 83 1060 4580 WerFault.exe 93 -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI upk.1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI upk.1.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI upk.1.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 upk.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString upk.0.exe -
Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 4580 upk.0.exe 4580 upk.0.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 376 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 4384 upk.1.exe 4384 upk.1.exe 4384 upk.1.exe 4384 upk.1.exe 4384 upk.1.exe 4384 upk.1.exe 4384 upk.1.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 4384 upk.1.exe 4384 upk.1.exe 4384 upk.1.exe 4384 upk.1.exe 4384 upk.1.exe 4384 upk.1.exe 4384 upk.1.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 920 wrote to memory of 4580 920 59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe.exe 93 PID 920 wrote to memory of 4580 920 59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe.exe 93 PID 920 wrote to memory of 4580 920 59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe.exe 93 PID 920 wrote to memory of 4384 920 59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe.exe 95 PID 920 wrote to memory of 4384 920 59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe.exe 95 PID 920 wrote to memory of 4384 920 59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe.exe 95 PID 4384 wrote to memory of 376 4384 upk.1.exe 100 PID 4384 wrote to memory of 376 4384 upk.1.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe.exe"C:\Users\Admin\AppData\Local\Temp\59e23d36c180b59a6f05d45e9b9aa5fdda77136c8bb98e3c9c513238a44210fe.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:920 -
C:\Users\Admin\AppData\Local\Temp\upk.0.exe"C:\Users\Admin\AppData\Local\Temp\upk.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4580 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4580 -s 23243⤵
- Program crash
PID:1060
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C:\Users\Admin\AppData\Local\Temp\upk.1.exe"C:\Users\Admin\AppData\Local\Temp\upk.1.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4384 -
C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe"C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD13⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:376
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 920 -s 15162⤵
- Program crash
PID:2676
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 920 -ip 9201⤵PID:2008
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4580 -ip 45801⤵PID:2124
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
11KB
MD5a33e5b189842c5867f46566bdbf7a095
SHA1e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA2565abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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Filesize
231KB
MD5b7d22e8408d8864725d0d5822d8d9543
SHA1d6ee4aa321ce7bcc9dca07bb77371ba8d6d34515
SHA256f5a8a7d27168d2c02ffd67151bd3a561d3ee6c61ff01b136a6de65fd3bc12028
SHA5126f3764680c54481c398bf75726da47342d6131d13c960f6b2b94065d9fd2b6b834679a76d7b6b5a0cb5d9506293ce680e73862d24814228c1090c73f62a8e47d
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954